Photonics-based solutions provider Coherent reported its financial results for CYQ4 2017 and as Coherent supplies laser equipment for FPD makers, it is usually a good indicator to the OLED market expansion stages. According to Coherent, there has been no real change in the timing of equipment shipments, and the company did not notice any hesitancy among display makers in china regarding the scale up of new OLED fabs. In fact the company says that the "momentum that is behind OLED seems to be quite strong and quite sustainable over a long period of time".